Kylie Jenner has to make some hard decisions in the final days before her baby daughter's arrival!

RadarOnline.com has exclusively learned that the 20-year-old mom-to-be is “stuck” on what her unborn child will call her transgender parent, Caitlyn Jenner.

“Kylie and Caitlyn don’t know what to do with this one. They know Kylie’s baby isn’t going to call Caitlyn grandpa, but they are not sure if grandma is appropriate either, since that is what Kris is going to want to use," the source claimed.

family use female pronouns for her, Kylie and sister Kendall, 22, still refer to her as “dad."

After a short rift, Kylie and her dad are still "very close," the source insisted — which angered her mom, Kris.

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“Kris hates that fact that Kylie and Caitlyn are so close, but Kylie told her mom to just deal with it. They are both going to be grandparents to her baby and will both be a huge part of her baby's life," the source alleged.

Do you think that Caitlyn should be called Grandma or Nana C? Sound off in the comments below.

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